Churn



' said lid.

UNITED STATES PATENT OFFICE.

DAVID STEPHENS, OF RUSHVILLE, ILLINOIS.

CHURN.

SPECIFICATION forming part of Letters Patent No. 406,791, dated July 9,1889.

Application filed February 27, 1889. Serial No. 301,323. (No model.)

a perspective view of a churn embodying my invention. Fig. 2 is a frontview showing the churn-body in vertical section, and Fig. 3 is a detailperspective view of the driving-shaft and the oscillating leversactuated thereby.

Referring to the drawings by letter, A designates a suitable base, onthe upper side of which I secure, by means of the brackets orangle-irons B, the standards 0 D, the said standards being suitablybraced by the beams E, as shown. The inner standards 0 are extendedsomewhat above the outer standards D, and between the upper ends of saidinner standards I mount a spool or idle-pulley F.

The upper end of the churn-body G is closed by a lid I, of any desiredconstruction, and the dasher-rod J passes centrally through the The saiddasher-rod is mounted in notches K in the ends of the bearingblocks L,secured between the upper ends of the standards 0, and oscillates insaid notches and is held in a vertical position thereby. Thedasher-blades M are secured to the lower end of the dasher-rod by meansof the .radial arms N, projecting from the dasher-rod, and are arrangedat an angle to the said arms, so that they will effectually agitate thecream and gather the butter.

Near the lower ends of the standards E, I secure the transversepivot-pin O, on which I pivot the lower ends of the oscillating leversP, which extend upward between the said standards, and are provided neartheir upper ends with the longitudinal slots Q. A double crank-shaft Ris j ournaled in the upper ends of the standards D, and has itscrankarms passing through and engaging the'said longitudinal slots ofthe oscillating levers, so that when the said shaft is rotated thelevers will be oscillated, as will be readily understood. The shaft isprovided at one end with an operating-handle S, and the lateral portionsor legs of its crank-arms are flattened, so as to engage the oppositesides of the levers and prevent them from moving longitudinally on thesaid crank-arms. The slots of the levers may be formed along the centrallines of the same; but I prefer to form them by making elongated notchesor recesses in the inner sides of the levers, and then securingguard-plates U over the said recesses, as shown. This constructionpermits the more ready disengagement of the levers and the driving-shaftin the event of either being broken.

The upper ends of the levers are connected with the dasherrod by a beltV, which has one end secured to the upper end of the levers, thenceextends over the idle-pulley F to the dasher-rod, around which it iswrapped tightly a number of times, and then passes backward under theidle-pulleyto the upper end of the other lever to which it is secured.

From the foregoing description, taken in connection with theaccompanying drawings, it is thought the operation and advantages of mychurn will be readily understood. The cream to be churned is placed inthe churnbody, and the driving-shaft is then rapidly rotated in onedirection. As the shaft is rotated its crank arms, moving through theslots of the levers, will impart an oscillatory motion to the saidlevers, and this motion will be communicated to the dasher rod throughthe belt, so as to vibrate the dasherrod and the dasher-blades carriedthereby. By this means the cream in the churn will be alternately thrownin opposite directions, so that it will be violently agitated and thebutter quickly formed. hen the butter has been formed, the belt V isunfastened, so that the lid of the churn-body and the dasher can beremoved to allow access to be had to the butter.

It will be seen that I have provided a very efficient churn in which theparts are compactly arranged and are strong and durable. Thedriving-shaft can be easily rotated, and, through the oscillating leversand the belt, will vibrate the dasher very rapidly. The churn-body issecured to the base, so that it P, and the shaft journaled on thestandards D D, and having its crank-arms engaging the slots Q of thelevers, the lateral portions of the crank-arms being flattened andengaging thesides of the levers, substantially as specified.

In testimony that I claim the foregoing as 20 my own I have heretoaflixed my signature in presence of two Witnesses.

DAVID STEPHENS. Witnesses:

EDWARD BERTHOLF, JOHN NEILL.

